Engine swap wirng harness - JeepForum.com
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post #1 of 4 Old 06-22-2010, 12:01 AM Thread Starter
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1998 ZJ 
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Location: Blossburg
Posts: 334
Engine swap wirng harness

Is there a place online somewhere that can walk through the rewiring process of the engin harness for an engine swap?? Im in the process of getting everything around for mine... but dont know how to simplify/truncate the engine harness

1995 XJ - Totaled
1998 XJ - Totaled
1994 YJ - Sold
1998 zJ - Current
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post #2 of 4 Old 06-22-2010, 05:05 AM
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1989 YJ Wrangler 
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What engine you are putting in would help.
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post #3 of 4 Old 06-22-2010, 06:38 AM
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1987 YJ Wrangler 
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and what is coming out
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post #4 of 4 Old 06-22-2010, 06:58 AM
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1993 YJ Wrangler 
Join Date: Jan 2005
Location: Albuquerque
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Even knowing the in/out motors, the answer to your 'is there a writeup' is probably No. There are just too many combinations of years and wires and wire colors, even in what you would consider a 'common' swap.

What worked incredibly well for me was subscribing to AllDataDIY.com for the motor vehicle and the Jeep vehicle. Then you can see what color wire from the Jeep goes to what color wire on the motor to power the computer, etc. I even got enough information and had the full wiring from the '02 motor I used that I was able to swap in the full '02 motor under-hood fuse-box and eliminate the Jeep box. That was pne of the best moves I made in the swap, because now I have a zillion available circuits and relays for whatever I do in the future (E.G. the Jeep does not have heated seats, but the fuse box has a spot for that, which can run the ARB system).

'93 YJ, '02 GM 4.3V6, SOA, dual ARB's, 8.8+D30(WarnHubs), 4.88s, 35" BFG KM2s, AX15, NP231+4:1+SYE+2LO, York OBA, Warn M8000.
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